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RFID tag on flexible substrate

A flexible substrate and substrate technology, applied in the direction of recording carriers, antennas, instruments, etc. used by machines, can solve the problems of easy disconnection, RFID antenna does not provide flexibility of RFID tags, etc.

Inactive Publication Date: 2017-04-19
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, conventional RFID antennas may not provide sufficient flexibility for use in RFID tags attached to human skin, or may be prone to disconnection when subjected to flexing or stretching associated with skin movement.

Method used

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  • RFID tag on flexible substrate
  • RFID tag on flexible substrate
  • RFID tag on flexible substrate

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Embodiment Construction

[0017] In the following description, reference is made to the accompanying drawings which form a part hereof and which are shown by way of illustration. It is to be understood that other embodiments can be conceived and made without departing from the scope or spirit of the present disclosure. Therefore, the following detailed description should not be viewed in a limiting sense.

[0018] Unless otherwise specified, all scientific and technical terms used herein have meanings commonly used in the art. The definitions provided herein are intended to facilitate the understanding of certain terms frequently used herein, and are not intended to limit the scope of the present disclosure.

[0019] Unless otherwise indicated, all numbers expressing characteristic dimensions, quantities and physical properties used in the specification and claims are to be understood in all instances as being modified by the term "about". Accordingly, unless indicated to the contrary, the numerical ...

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PUM

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Abstract

A radio frequency identification (RFID) tag that includes an antenna having a spiral form disposed on a major surface of a flexible substrate is described. The RFID tag includes a first terminal disposed at a first end of the antenna and a second terminal disposed at the second end of the antenna. The RFID tag may include a pad portion along the length of the antenna between the first and second ends for mounting an integrated circuit. Except for the pad portion, a radius of curvature of the antenna along at least 90 percent of a length of the antenna between the first and second ends is greater than about 0.1 mm and less than about 10 mm.

Description

Background technique [0001] Radio Frequency Identification (RFID) tags can be used for authentication. It may be desirable to attach electronics that can be used for authentication to human skin. However, conventional RFID antennas may not provide sufficient flexibility for use in RFID tags attached to human skin, or may be prone to disconnection when subjected to flexing or stretching associated with skin movement. Contents of the invention [0002] In some aspects of the present specification, a radio frequency identification tag is provided that includes a flexible substrate having opposing major top and major bottom surfaces, a helix disposed on the top surface of the substrate and at a first end An antenna having a length between the first end portion and the second end portion, a first terminal disposed at the first end portion of the antenna and in electrical communication with the first end portion of the antenna, a first terminal disposed at the second end portion ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/02G06K19/077H01Q1/22H01Q1/36H01Q1/38
CPCG06K19/025G06K19/07718G06K19/07728G06K19/07783H01Q1/2225H01Q1/36H01Q1/38G06K19/077G06K19/0776G06K19/07722G06K19/07773
Inventor J·D·盖辛格D·G·彼得森R·E·戈里尔H·M·卡普兰
Owner 3M INNOVATIVE PROPERTIES CO